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1227635-48-4

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1227635-48-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1227635-48-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,2,7,6,3 and 5 respectively; the second part has 2 digits, 4 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 1227635-48:
(9*1)+(8*2)+(7*2)+(6*7)+(5*6)+(4*3)+(3*5)+(2*4)+(1*8)=154
154 % 10 = 4
So 1227635-48-4 is a valid CAS Registry Number.

1227635-48-4Relevant articles and documents

Ligand-Controlled Regiodivergent Hydroalkylation of Pyrrolines

Qian, Deyun,Hu, Xile

supporting information, p. 18519 - 18523 (2019/11/22)

Nickel hydride (NiH) catalyzed hydrocarbonation has emerged as an efficient approach to construct new C?C bonds containing at least one C(sp3) center. However, the regioselectivity of this reaction is by far dictated by substrates. Described here is a strategy to achieve two different regioselectivites of hydroalkylation of the same substrates by using ligand control. This strategy enables the first regiodivergent hydroalkylation of 3-pyrrolines, yielding both 2- and 3-alkylated pyrrolidines, valuable synthetic intermediates and common motifs in many bioactive molecules. This method demonstrates broad scope and high functional-group tolerance, and can be applied in late-stage functionalizations.

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